S000004345 [Member] Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| iShares Russell 1000 Value ETF | iShares Russell 1000 Value ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 15.71% | 14.16% | 11.31% | (7.72%) | 24.92% | 2.67% | 26.34% | (8.40%) | 13.47% | 17.09% |